Initial Setup problem with agent connecting to data center

I was following a tutorial online for a java MC server using debian12, casaos and crafty. My server is up and working, but when adding the plugin for playit.gg the agent could not connect to the data center. Thinking that it was frozen I went back to home page on playit.gg, but it now only should the agent as offline. Any ideas? I tried to delete the connection and start over, but i didn’t see how this could be accomplished.

So I deleted the plug in files for playit.gg and reloaded the server. This time it went through. The first time I had the external port closed. However, I still don’t know how to remove the first attempt.